KALKERUP Bettina · TCHIN TCHIN
163rank
-83.1Butler · 42 bds
-1.98per board
±4.9swing
-3.40vs par /bd
-1.58adjusted /bd
by round
Strength of schedule: opponents averaged +0.40/bd (a tough draw) → opponent-adjusted -1.58/bd
Bidding activity — not a pass: 43.9% (54/123)
vs par by strain: NT -4.62 (8) · a suit -3.12 (34)
vs par by level: part-score -1.80 (15) · game -3.41 (22) · slam -8.20 (5)
By role: declaring -1.54/bd (-4.96 vs par · 24) · defending -2.57/bd (-1.33 vs par · 18)
By vulnerability: vulnerable -1.84/bd (-3.95 vs par · 21) · not vulnerable -2.12/bd (-2.86 vs par · 21)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round of 32 | J.Norris | P.Zatorski – K.Dufrat | Open | 14 | -67.9 | -4.85 | -5.07 |
| Round of 32 | J.Norris | J.Edmonds – J.Wooldridge | Open | 14 | +2.3 | +0.16 | +0.43 |
| Round of 32 | J.Norris | P.Zatorski – K.Dufrat | Open | 14 | -17.5 | -1.25 | -5.57 |
Every board — best Butler first↑ top
vs par = IMPs this pair scored above (+) or below (−) the board’s double-dummy par — what bidding and play (theirs and the opponents’) added or gave away against perfect play.
| Butler | Round | Opponents | Bd | Contract | Lead | Res | vs par |
|---|---|---|---|---|---|---|---|
| +7.7 | Round of 32 | EDMONDS | 23 | 4♠ | = | +10 | |
| +7.7 | Round of 32 | EDMONDS | 29 | 6NT | +1 | -9 | |
| +6.7 | Round of 32 | EDMONDS | 27 | 7♣ | = | -2 | |
| +6.3 | Round of 32 | EDMONDS | 38 | 3NT | +3 | -12 | |
| +4.5 | Round of 32 | EDMONDS | 25 | 4♠ | +2 | +11 | |
| +3.7 | Round of 32 | EDMONDS | 42 | 7NT | = | +0 | |
| +3.0 | Round of 32 | EDMONDS | 30 | 3♦ | -3 | -4 | |
| +2.7 | Round of 32 | EDMONDS | 34 | 6♦ | +1 | -13 | |
| +2.3 | Round of 32 | EDMONDS | 26 | 2♥ | -2 | +7 | |
| +1.6 | Round of 32 | EDMONDS | 17 | 3♠ | -1 | +5 | |
| +0.5 | Round of 32 | EDMONDS | 35 | 4♠ | = | +0 | |
| +0.2 | Round of 32 | EDMONDS | 1 | 3♦ | = | +0 | |
| +0.2 | Round of 32 | EDMONDS | 2 | 1NT | = | -1 | |
| +0.1 | Round of 32 | EDMONDS | 31 | 3♠ | = | +0 | |
| -0.0 | Round of 32 | EDMONDS | 16 | 3NT | +1 | +0 | |
| -0.3 | Round of 32 | EDMONDS | 12 | 4♠x | -3 | +14 | |
| -0.6 | Round of 32 | EDMONDS | 18 | 2♥ | = | +1 | |
| -0.8 | Round of 32 | EDMONDS | 19 | 4♥ | -1 | -2 | |
| -0.8 | Round of 32 | EDMONDS | 22 | 2♥ | -1 | -5 | |
| -1.5 | Round of 32 | EDMONDS | 6 | 2♣ | -1 | +0 | |
| -1.5 | Round of 32 | EDMONDS | 21 | 5♦ | -1 | +2 | |
| -2.0 | Round of 32 | EDMONDS | 11 | 3NT | +1 | -9 | |
| -2.3 | Round of 32 | EDMONDS | 32 | 4♥ | = | +0 | |
| -2.5 | Round of 32 | EDMONDS | 28 | 4♠ | = | +1 | |
| -3.2 | Round of 32 | EDMONDS | 20 | 2♦ | = | -5 | |
| -3.4 | Round of 32 | EDMONDS | 36 | 2♠ | +1 | +0 | |
| -3.9 | Round of 32 | EDMONDS | 13 | 4♠ | -1 | -6 | |
| -4.0 | Round of 32 | EDMONDS | 7 | 5♦ | +1 | -13 | |
| -4.0 | Round of 32 | EDMONDS | 41 | 2♦ | = | +0 | |
| -4.4 | Round of 32 | EDMONDS | 8 | 3NT | +1 | +0 | |
| -4.7 | Round of 32 | EDMONDS | 24 | 3♠ | = | -6 | |
| -5.2 | Round of 32 | EDMONDS | 10 | 4♥ | = | -3 | |
| -6.3 | Round of 32 | EDMONDS | 37 | 4♠x | -1 | -12 | |
| -6.4 | Round of 32 | EDMONDS | 15 | 5♦ | +2 | -11 | |
| -6.5 | Round of 32 | EDMONDS | 5 | 3NT | -2 | -6 | |
| -7.1 | Round of 32 | EDMONDS | 39 | 5♦x | -2 | -9 | |
| -7.8 | Round of 32 | EDMONDS | 3 | 4♥ | -1 | -13 | |
| -8.0 | Round of 32 | EDMONDS | 33 | 2♣x | -2 | -9 | |
| -9.8 | Round of 32 | EDMONDS | 14 | 5♦ | = | -7 | |
| -10.4 | Round of 32 | EDMONDS | 40 | 2♥x | -5 | -10 | |
| -10.5 | Round of 32 | EDMONDS | 4 | 4♥ | = | -10 | |
| -12.4 | Round of 32 | EDMONDS | 9 | 6♣ | -2 | -17 |